Fedora kernel-2.6.17-1.2142_FC4 patched with stable patch-2.6.17.4-vs2.0.2-rc26.diff

[linux-2.6.git] / include / asm-i386 / kprobes.h

diff --git a/include/asm-i386/kprobes.h b/include/asm-i386/kprobes.h
index 4092f68..57d157c 100644 (file)
--- a/include/asm-i386/kprobes.h
+++ b/include/asm-i386/kprobes.h
@@ -27,10 +27,14 @@
 #include <linux/types.h>
 #include <linux/ptrace.h>
 
+#define  __ARCH_WANT_KPROBES_INSN_SLOT
+
+struct kprobe;
 struct pt_regs;
 
 typedef u8 kprobe_opcode_t;
 #define BREAKPOINT_INSTRUCTION 0xcc
+#define RELATIVEJUMP_INSTRUCTION 0xe9
 #define MAX_INSN_SIZE 16
 #define MAX_STACK_SIZE 64
 #define MIN_STACK_SIZE(ADDR) (((MAX_STACK_SIZE) < \
@@ -39,13 +43,39 @@ typedef u8 kprobe_opcode_t;
        : (((unsigned long)current_thread_info()) + THREAD_SIZE - (ADDR)))
 
 #define JPROBE_ENTRY(pentry)   (kprobe_opcode_t *)pentry
+#define ARCH_SUPPORTS_KRETPROBES
+
+void arch_remove_kprobe(struct kprobe *p);
+void kretprobe_trampoline(void);
 
 /* Architecture specific copy of original instruction*/
 struct arch_specific_insn {
        /* copy of the original instruction */
-       kprobe_opcode_t insn[MAX_INSN_SIZE];
+       kprobe_opcode_t *insn;
+       /*
+        * If this flag is not 0, this kprobe can be boost when its
+        * post_handler and break_handler is not set.
+        */
+       int boostable;
 };
 
+struct prev_kprobe {
+       struct kprobe *kp;
+       unsigned long status;
+       unsigned long old_eflags;
+       unsigned long saved_eflags;
+};
+
+/* per-cpu kprobe control block */
+struct kprobe_ctlblk {
+       unsigned long kprobe_status;
+       unsigned long kprobe_old_eflags;
+       unsigned long kprobe_saved_eflags;
+       long *jprobe_saved_esp;
+       struct pt_regs jprobe_saved_regs;
+       kprobe_opcode_t jprobes_stack[MAX_STACK_SIZE];
+       struct prev_kprobe prev_kprobe;
+};
 
 /* trap3/1 are intr gates for kprobes.  So, restore the status of IF,
  * if necessary, before executing the original int3/1 (trap) handler.
@@ -56,14 +86,6 @@ static inline void restore_interrupts(struct pt_regs *regs)
                local_irq_enable();
 }
 
-#ifdef CONFIG_KPROBES
 extern int kprobe_exceptions_notify(struct notifier_block *self,
                                    unsigned long val, void *data);
-#else                          /* !CONFIG_KPROBES */
-static inline int kprobe_exceptions_notify(struct notifier_block *self,
-                                          unsigned long val, void *data)
-{
-       return 0;
-}
-#endif
 #endif                         /* _ASM_KPROBES_H */